unit tests for delegated functions; factor out common test http handlers into 'fixtures.go' files
diff --git a/rackspace/objectstorage/v1/containers/delegate.go b/rackspace/objectstorage/v1/containers/delegate.go
index 67c2c41..293cbf1 100644
--- a/rackspace/objectstorage/v1/containers/delegate.go
+++ b/rackspace/objectstorage/v1/containers/delegate.go
@@ -6,6 +6,18 @@
 	"github.com/rackspace/gophercloud/pagination"
 )
 
+// ExtractInfo interprets a page of List results when full container info
+// is requested.
+func ExtractInfo(page pagination.Page) ([]os.Container, error) {
+	return os.ExtractInfo(page)
+}
+
+// ExtractNames interprets a page of List results when just the container
+// names are requested.
+func ExtractNames(page pagination.Page) ([]string, error) {
+	return os.ExtractNames(page)
+}
+
 // List is a function that retrieves containers associated with the account as
 // well as account metadata. It returns a pager which can be iterated with the
 // EachPage function.
diff --git a/rackspace/objectstorage/v1/containers/delegate_test.go b/rackspace/objectstorage/v1/containers/delegate_test.go
index 0c09d3e..86868ae 100644
--- a/rackspace/objectstorage/v1/containers/delegate_test.go
+++ b/rackspace/objectstorage/v1/containers/delegate_test.go
@@ -1 +1,91 @@
 package containers
+
+import (
+	"testing"
+
+	os "github.com/rackspace/gophercloud/openstack/objectstorage/v1/containers"
+	"github.com/rackspace/gophercloud/pagination"
+	th "github.com/rackspace/gophercloud/testhelper"
+	fake "github.com/rackspace/gophercloud/testhelper/client"
+)
+
+func TestListContainerInfo(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	os.HandleListContainerInfoSuccessfully(t)
+
+	count := 0
+	err := List(fake.ServiceClient(), &os.ListOpts{Full: true}).EachPage(func(page pagination.Page) (bool, error) {
+		count++
+		actual, err := ExtractInfo(page)
+		th.AssertNoErr(t, err)
+
+		th.CheckDeepEquals(t, os.ExpectedListInfo, actual)
+
+		return true, nil
+	})
+	th.AssertNoErr(t, err)
+	th.CheckEquals(t, count, 1)
+}
+
+func TestListContainerNames(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	os.HandleListContainerNamesSuccessfully(t)
+
+	count := 0
+	err := List(fake.ServiceClient(), &os.ListOpts{Full: false}).EachPage(func(page pagination.Page) (bool, error) {
+		count++
+		actual, err := ExtractNames(page)
+		if err != nil {
+			t.Errorf("Failed to extract container names: %v", err)
+			return false, err
+		}
+
+		th.CheckDeepEquals(t, os.ExpectedListNames, actual)
+
+		return true, nil
+	})
+	th.AssertNoErr(t, err)
+	th.CheckEquals(t, count, 1)
+}
+
+func TestCreateContainers(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	os.HandleCreateContainerSuccessfully(t)
+
+	options := os.CreateOpts{ContentType: "application/json", Metadata: map[string]string{"foo": "bar"}}
+	headers, err := Create(fake.ServiceClient(), "testContainer", options).ExtractHeaders()
+	th.CheckNoErr(t, err)
+	th.CheckEquals(t, "bar", headers["X-Container-Meta-Foo"][0])
+
+}
+
+func TestDeleteContainers(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	os.HandleDeleteContainerSuccessfully(t)
+
+	_, err := Delete(fake.ServiceClient(), "testContainer").ExtractHeaders()
+	th.CheckNoErr(t, err)
+}
+
+func TestUpdateContainers(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	os.HandleUpdateContainerSuccessfully(t)
+
+	options := &os.UpdateOpts{Metadata: map[string]string{"foo": "bar"}}
+	_, err := Update(fake.ServiceClient(), "testContainer", options).ExtractHeaders()
+	th.CheckNoErr(t, err)
+}
+
+func TestGetContainers(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+	os.HandleGetContainerSuccessfully(t)
+
+	_, err := Get(fake.ServiceClient(), "testContainer").ExtractMetadata()
+	th.CheckNoErr(t, err)
+}